Patents Assigned to Agfa-Gevaert
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Patent number: 8569393Abstract: A radiation curable composition for UV LED curing includes at least one co-initiator selected from the group consisting of an aliphatic tertiary amine and a dialkyl aniline derivative; and at least one specific carbazole photoinitiator. The radiation curable composition can be advantageously used to prevent unstable yellowing behavior in an image upon storage.Type: GrantFiled: December 6, 2010Date of Patent: October 29, 2013Assignee: AGFA-Gevaert N.V.Inventor: Johan Loccufier
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Publication number: 20130233932Abstract: A security document precursor including, in order, at least: a) a transparent biaxially stretched polyethylene terephthalate foil; b) a colourless colour forming layer containing at least an infrared absorber, a colour forming component and a polymeric binder; and c) a polymeric support; wherein the colourless colour forming layer contains at least one component forming a compound having a melting temperature of less than 20° C. upon laser marking the colourless colour forming layer with an infrared laser. Methods for securing a security document using the security document precursor are also disclosed.Type: ApplicationFiled: December 2, 2011Publication date: September 12, 2013Applicant: AGFA-GEVAERT N.V.Inventors: Bart Waumans, Ingrid Geuens, Paul Callant, Hubertus Van Aert
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Publication number: 20130235145Abstract: A method of colour laser marking a security document precursor including, in order, at least: a) a polymeric foil; b) at least one colourless colour forming layer for generating a colour different from black containing at least an infrared absorber, a colour forming compound and a polymeric binder; and c) either a lasermarkable polymeric support or a lasermarkable layer for generating a black colour; comprising the steps of: (1) laser marking a colour different from black in the colourless colour forming layer with an infrared laser used in continuous wave mode; and (2) laser marking a black colour by carbonization in the lasermarkable polymeric support or the lasermarkable layer with the same infrared laser used in a pulsed mode; and wherein at least one of the polymeric foil and the lasermarkable polymeric support is transparent for the infrared light of the infrared laser.Type: ApplicationFiled: November 28, 2011Publication date: September 12, 2013Applicant: AGFA-GEVAERT N.V.Inventors: Ingrid Geuens, Hubertus Van Aert, Paul Callant, Bart Waumans
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Publication number: 20130229008Abstract: A security document precursor including, in order: a) at least one transparent biaxially stretched polyester foil; b) one colourless colour forming layer containing at least an infrared absorber, a colourless dye-precursor and a polymeric binder; and c) a polymeric support; wherein the polymeric binder is copolymer including at least 90 wt % of a chlorinated ethylene and 1 wt % to 10 wt % of vinyl acetate both based on the total weight of the binder. Methods for making the security document precursor are also disclosed.Type: ApplicationFiled: December 6, 2011Publication date: September 5, 2013Applicant: AGFA-GEVAERT N.V.Inventors: Hubertus Van Aert, Ingrid Geuens, Paul Callant, Bart Waumans
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Publication number: 20130230704Abstract: A method of colour laser marking an article having a polymeric foil with at least one colourless layer containing an infrared absorber, a polymeric binder and a colour forming compound; including the steps of:—laser marking the colourless layer with an infrared laser using a first laser operation mode to generate a blue or cyan colour; and—laser marking the same colourless layer with an infrared laser using a second laser operation mode to generate a black colour, wherein the first laser operation mode applies less energy to the colourless layer than the second laser operation mode.Type: ApplicationFiled: December 6, 2011Publication date: September 5, 2013Applicant: AGFA-GEVAERT N.V.Inventors: Paul Callant, Ingrid Geuens, Bart Waumans, Hubertus Van Aert
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Publication number: 20130210954Abstract: A polymerisable photoinitiator according to Formula (I): wherein: R1 and R2 are independently selected from the group consisting of hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aryl or heteroaryl group, a halogen, an ether group, a thioether group, an aldehyde group, a ketone group, an ester group, an amide group, an amine and a nitro group; R1 and R2 may represent the necessary atoms to form a five to eight membered ring; L represents an n+m-valent linking group comprising 1 to 30 carbon atoms; A represents a radically polymerizable group selected from the group consisting of an acrylate group, a methacrylate group, a styrene group, an acryl amide group, a methacryl amide group, a maleate group, a fumarate group, an itaconate group, a vinyl ether group, an allyl ether group, a vinyType: ApplicationFiled: October 4, 2011Publication date: August 15, 2013Applicant: AGFA-GEVAERT N.V.Inventor: Johan Loccufier
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Publication number: 20130209783Abstract: The invention relates to an image receiving material for offset printing comprising a support and an image receiving layer, the image receiving layer comprising a porous pigment and an aqueous dispersion of a polymer particle characterized in that the image receiving layer further comprises a copolymer comprising alkylene and vinyl alcohol units.Type: ApplicationFiled: November 24, 2011Publication date: August 15, 2013Applicant: AGFA-GEVAERT N.V.Inventors: Dirk Quintens, Dirk Kokkelenberg
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Patent number: 8496989Abstract: Process comprising the steps of: (i) providing an elongated porous web, said elongated porous web comprising two outermost surfaces; (ii) transporting said elongated porous web downwards between two impregnating heads comprising two slots each with substantially vertical upper and lower slot faces substantially parallel to said elongated porous web providing simultaneously to both surfaces of said elongated porous web metered substantially identical quantities of a dope, comprising at least one membrane polymer and at least one solvent therefor; (iii) thereby impregnating said elongated porous web completely with said dope and providing substantially equally thick dope layers on each surface of said outermost surfaces of said elongated porous web with a thickness independent of the gap between one of said lower slot faces and the surface of said elongated porous web nearest thereto; (iv) subjecting said dope associated with said elongated porous web immediately after dope-impregnation to symmetric phase inverType: GrantFiled: May 29, 2009Date of Patent: July 30, 2013Assignees: Agfa-Gevaert N.V., Vito N.V.Inventors: Willem Mues, Bart Cobben, Wim Doyen
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Publication number: 20130176370Abstract: A radiation curable composition includes a) at least one monomer comprising at least one vinyl ether group and at least one (meth)acrylate group; and b) at least one diffusion hindered photoinitiator selected from the group consisting of a polymeric photoinitiator, a multifunctional photoinitiator and a polymerizable photoinitiator characterized in that the diffusion hindered photoinitiator includes at least one structural moiety according to Formula (I): wherein: R1 and R2 are independently selected from the group consisting of a hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aryl or heteroaryl group, a halogen, an ether, a thioether, an aldehyde, a ketone, an ester, an amide, an amine and a nitro group; R1 and R2 may represent the necessary atoms to form a five to eight membered rinType: ApplicationFiled: October 4, 2011Publication date: July 11, 2013Applicant: AGFA-GEVAERT N.V.Inventor: Johan Loccufier
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Patent number: 8454743Abstract: A method of preparing a pigment includes, in order, the steps of: a) providing a pigment containing a nucleophile group under basic conditions; b) reacting the pigment with a compound according to Formula (I): wherein, X is a halogen atom or a tosylate group, and R1 and R2 independently represent an alkyl group; and c) hydrolyzing the R1-O bond and/or the R2-O bond. The obtained pigments can be used in non-aqueous pigment dispersions.Type: GrantFiled: October 15, 2010Date of Patent: June 4, 2013Assignee: AGFA-GEVAERT N.VInventor: Geert Deroover
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Patent number: 8435341Abstract: A method of preparing a pigment includes in order the steps of: a) providing a pigment containing a nucleophile group under basic conditions; b) reacting the pigment with 1,4-butane sultone or 1,3-propane sultone in an alkaline medium to form sulfobutyl groups respectively sulfopropyl groups on the pigment surface; and c) adding acid to convert the sulfobutyl groups or sulfopropyl groups to sulfonic acid groups. Pigments obtainable by the method and non aqueous pigment dispersions are also disclosed.Type: GrantFiled: October 20, 2010Date of Patent: May 7, 2013Assignee: AGFA-Gevaert N.V.Inventor: Geert Deroover
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Patent number: 8435725Abstract: A method for interlaminating a transparent embossed hologram, the transparent embossed hologram comprising a support having two sides, at least one of the two sides either itself being embossed or having a layer thereon which is embossed and a layer of a HRI-material contiguous with the embossed side or embossed layer, comprising the steps of: a) conditioning the outermost surface of the layer of inorganic HRI-material with at least one organic liquid; b) drying the outermost surface of the layer of the inorganic HRI-material thereby providing a conditioned outermost surface of the layer of inorganic HRI-material; c) applying an adhesive layer to the conditioned outermost surface; and d) laminating the outermost surface of inorganic HRI-material to an optionally transparent film, wherein the at least one organic liquid is selected from the group consisting of ketones, ethers, heterocyclic ethers, lactams, amides, halo-aliphatic compounds, nitriles and esters; wherein at least one of the support and the film iType: GrantFiled: September 19, 2008Date of Patent: May 7, 2013Assignee: Agfa-Gevaert NVInventor: Ingrid Geuens
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Publication number: 20130050367Abstract: A free radical radiation curable inkjet ink containing a photoinitiator and polymerizable compounds includes at least 45 wt % of a mixture of monomers consisting of: a) 10 to 35 wt % of one or more cyclic monofunctional acrylates wherein the homopolymer thereof has a Tg larger than 20° C.; b) 10 to 30 wt % of a N-vinyl lactam and/or a vinylether acrylate; c) 10 to 30 wt % of an ethoxylated and/or propoxylated polyacrylate having a molecular weight of at least 450; wherein all wt % are based on the total weight of the inkjet ink; and wherein the Tg is determined by the DSC method in ISO 11357-2:1999.Type: ApplicationFiled: June 8, 2011Publication date: February 28, 2013Applicant: AGFA-GEVAERT N.V.Inventor: Ivan Hoogmartens
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Publication number: 20130044167Abstract: A free radical radiation curable inkjet ink containing a photoinitiator and polymerizable compounds includes a) no more than 15 wt % of one or more monofunctional acrylates wherein the homopolymer thereof has a Tg smaller than 20° C.; and b) at least 45 wt % of a mixture of monomers consisting of b1) 10 to 45 wt % of a N-vinyl lactam and/or a vinylether acrylate; and b2) 10 to 45 wt % of an ethoxylated and/or propoxylated polyacrylate having a molecular weight of at least 450; wherein all wt % are based on the total weight of the inkjet ink; and wherein the Tg is determined by the DSC method in ISO 11357-2:1999.Type: ApplicationFiled: June 9, 2011Publication date: February 21, 2013Applicant: AGFA-GEVAERT N.V.Inventor: Ivan Hoogmartens
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Patent number: 8357447Abstract: A printable paper comprising a water-resistant support having two optionally subbed sides and a single layer on at least one of said optionally subbed sides, wherein said single layer has no substantial compositional variation, has a layer thickness of at least 3 ?m, a pore volume of at least 1.Type: GrantFiled: March 12, 2009Date of Patent: January 22, 2013Assignee: Agfa-Gevaert N.V.Inventors: Dirk Quintens, Dirk Kokkelenberg
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Publication number: 20130008965Abstract: A method of preparing a security laminate including the steps of: a) providing a polyethylene terephthalate substrate (1); b) stretching the polyethylene terephthalate substrate in either a longitudinal or a transversal direction; c) coating and drying a first coating composition (2) on the stretched polyethylene terephthalate substrate; d) stretching the coated polyethylene terephthalate substrate in the longitudinal or transversal direction not selected in step b) in order to obtain a coated biaxially stretched polyethylene terephthalate substrate having a layer of the first coating composition with a dry thickness between 50 nm and 400 nm; e) coating and drying a second coating composition (3) on top of the dry layer on the biaxially stretched substrate, wherein the first coating composition contains a copolymer selected from the group consisting of a hydroxyl—functional, partially-hydrolyzed vinyl chloride/vinyl acetate copolymer and a polyester-urethane copolymer; and wherein the second coating compositiType: ApplicationFiled: March 28, 2011Publication date: January 10, 2013Applicant: AGFA-GEVAERT N.V.Inventors: Ingrid Geuens, Bart Waumans, Vera Drieghe
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Patent number: 8329784Abstract: Disclosed is a process for preparing a non-transparent microvoided axially stretched film including i) mixing a linear polyester having monomer components consisting essentially of an aromatic dicarboxylic acid, an aliphatic diol and optionally an aliphatic dicarboxylic acid, a non-crosslinked random SAN-polymer and one or more additional ingredients to produce a mixture, ii) forming the mixture produced in step i) in a thick film followed by quenching; iii) stretching the thick film at a temperature between the glass transition temperature of the SAN-polymer and the glass transition temperature of said linear polyester to at least twice the initial length, and (iv) further stretching the film at an angle substantially 90° to the previous stretching process to at least twice the initial length and at 90° C. or below.Type: GrantFiled: January 31, 2011Date of Patent: December 11, 2012Assignee: Agfa-Gevaert N.V.Inventors: Dirk Quintens, Luc Leenders
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Publication number: 20120309861Abstract: A specific type of carbazole photoinitiator is capable of providing radiation curable compositions that are curable by UV LEDs and do not exhibit an unstable yellowing behaviour in an image upon storage like ITX.Type: ApplicationFiled: December 6, 2010Publication date: December 6, 2012Applicant: AGFA-GEVAERT N.V.Inventor: Johan Loccufier
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Patent number: 8313576Abstract: A method of preparing a pigment includes the steps of: a) providing a mixture including: a pigment selected from the group of pigments including at least 50 wt % of C.I. Pigment Violet 23, C.I. Pigment Red 146, C.I. Pigment Red 176, C.I. Pigment Red 177, C.I. Pigment Violet 19 and C.I. Pigment Orange 13 based on the total weight of the pigment; alkyl nitrile; and at least one acid selected from the group consisting of sulfuric acid and chlorosulfuric acid, with the acid present in the mixture in amount of more than 2 wt % based on the total weight of the pigment; b) heating the mixture for more than 2 hours to a temperature of at least 70° C.; and c) filtering the mixture and washing the filtrand with a washing liquid containing water until the filtrate has a pH between 4 and 7. Pigments obtainable by the method and non aqueous pigment dispersions are also disclosed.Type: GrantFiled: October 15, 2010Date of Patent: November 20, 2012Assignee: AGFA-GEVAERT N.V.Inventor: Geert Deroover
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Publication number: 20120283349Abstract: A radiation curable composition for UV LED curing includes at least one co-initiator selected from the group consisting of an aliphatic tertiary amine and a dialkyl aniline derivative; and at least one specific carbazole photoinitiator. The radiation curable composition can be advantageously used to prevent unstable yellowing behaviour in an image upon storage.Type: ApplicationFiled: December 6, 2010Publication date: November 8, 2012Applicant: AGFA-GEVAERT N.V.Inventor: Johan Loccufier